Charcoal apparatus



(No Model.) 3 SheetsSheet 1.

J. SGHERFFIUS. CHARCOAL APPARATUS.

No. 409,873. Patented Aug. 27, 1889.

WITNESSES: l/Vl/E/VTOI? ATTORNEY N. PETERS. Pholo-Lnnogm har, Washmgion,D. c.

(No Model.) 3 Sheets Sheet 2. J. SOHERPFIUS.

OHARGOAL APPARATUS.

vN0. 409,873, Patented Aug. 27, 1889.

ATTORNEY N4 FEI'ERS, Phamumn m hur, Washington, D. C.

(No Model.)

J. SOHERFFIUS.

CHARCOAL APPARATUS.

3 Sheets-Sheet 3.

No. 409,873. Patented Aug. 27, 1889.

l I 17 i A J I A T Am ,5 1 L -73 I 20 1s 1 5 ll 7/ 7 4 Ah u nW/T/VESSES: I/Vl/E/VTOH BY w 1 r5 ATTORNEY N. PETERS. Pnowumn mprar,wishin mn, D (I.

UNITED STATES PATENT OFFICE.

JACOB SOHERFFIUS, OF VVINONA, MINNESOTA.

CHARCOAL APPARATUS.

SPECIFICATION forming part of Letters Patent No. 409,873, dated August27, 1889.

Application filed April 6, 1889. Serial No. 306,155. (No model.)

To all whom it may concern.-

Be it known that I, JACOB SCHERFFIUS, of \Vinona, in the county ofVinona and State of Minnesota, have invented a new and Improved CharcoalApparatus, of which the following is a full, clear, and exactdescription.

The invention consists in the novel details of construction andcombination of parts hereinafter described and claimed, whereby acharcoal apparatus of increased efficiency is produced.

Reference is to be had to the accompanying drawings, forming a partofthis specification, in which similar figures of reference indicatecorresponding parts in all the views.

Figures 1 and 2 are central vertical sectional elevations of my improvedapparatus, the views being taken at right angles to each other. Fig. 3is a horizontal section on line y y, Fig. 1; and Fig. 4 is a horizontalsection on line 2 z, Fig. 1.

The invention is an improvement on the apparatus for which LettersPatent No. 387,817 were granted to me August 14,1888.

In the drawings, A represents the fire-chamber, the case 10 of which isinclosed by a second case 10, the two forming an intervening chamber B.Above the fire-chamber is supported the case 11 of charringchamber 0,which case 11 is also surrounded by a second case 11, the two forming anintervening chamber D. The fire-chamber A is open at two sides of itstop, as at A, and is thus in direct communication with chamber D,through which the products of combustion from firechamber A pass, thusheating the charringchamber 0 and escaping from chamber D throughescape-pipe or chimney D. A pipe 12 extends from near the top of thefire-chamber A to near the top of the charring-chamber O, and isperforated within the latter, as at 12, its lower end being closed bydampers 13 13, that may be opened or closed, as desired, to establish orcut 06 communication between the fire-chamber and charring-chamber andbetween the latter and the chamber B. The chamber B, that is formed bythe inner and outer casings of the fire-chamber, is in communicationwith the charring-chamber 0 through the pipe 12, said pipe 12 and thechamber B being in communication through the horizontal tubes or pipes14.

The charring-chamber is provided with a suitable grate 15, below whichthere extend from said chamber at opposite sides the condensing-pipes 1717, which pass down through water-tanks 18 and enter the chamber B nearthe bottom. The pipes 17 are detachable from the apparatus, and areprovided with dampers 17 and with discharging-nozzles 19, for deliveringthe products of condensation into troughs 20, the Water in which forms aseal for said nozzles, preventing entrance of atmospheric air thereto,as fully explained in my patent above referred to. The inner case 11 ofcharring-chamber O is provided with pipes 21 22 at the top and sidethereof, re spectively, each provided with covers, the pipes 21 beingfor the introduction of the wood and the pipes 22 for the removal of thecharcoal; or the wood to be charred may be introduced through anysuitable gate or door, as 23.

In operation, the charring-chamber having been charged with wood and thefire in the fire-chamber started, the products of combustion from thelatter pass through chamber D, heating the charring chamber, and outthrough the smoke-exit D, the damper 13 being closed and dampers 13 and2a being open. The moisture from the wood then passes into thecondensing-pipes 17, the condensed products escaping through the nozzles19, and the cooled air entering the chamber B at the bottom and passingthrough pipes 14L and 12 into the charring-chamber, where furthermoisture is taken up, the moist air again passing through thecondensing-pipes 17 and so on continuously until the charring of thewood is completed. During the charrin g process, except when the fire isfirst started, the damper 13 in pipe 12 is also opened to the desiredextent, and combustible gases escaping from the wood descend to thelower end of said pipe and are consumed, and the heat at said open endfurther heats the incoming air from the horizontal pipes, sending it tothe charring-chamber in a highly-heated condition. The first flame fromthe burning gas is blue and burns as describedabove. When the color ofthe flame changes from blue to white, or as soon thereafter as may bedetermined by the operator, the damper 13 in pipe 12 may be closed, sothat the temperature in the charringchamber C may not be so high as toinjure the charcoal, and when the charcoal is sufficiently charred thedampers 24 are also closed, thus shutting off the supply of gas from thechamber 0, and when the gas ceases to burnthe damper 13 is also closedto completely seal the chamber 0, and in order to more rapidly cool thechamber 0 and the charcoal therein I then open the dampers 13 and 24,the damper 13 being closed, thus allowing the heated air to circulatethrough the condensers and be more rapidly cooled.

An excess of heat is developed in my improved apparatus above described,and this I can utilize for the production of power by conducting off theheated and combustible gases.

The apparatus is also applicable for calcining acetate of lime.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In apparatus of the character described, the combination of the firechamber and the charring or calcining chamber, each being formed by ajacket-ed inclosing case forming chambers surrounding the same, thechamber surrounding the fire-chamber being in communication with thecharring-chamber, and the fire-chamber being in communication with thecharring-chamber through a dampered connecting-pipe, and also incommunication with the chamber surrounding the ber, and condensing-pipesconnecting the charring-chamber and the chamber surrounding thefire-chamber, substantially as described.

JACOB SCHERFFIUS.

lVitnesses:

J. N. MAYBURY, D. E. VANCE.

